Stop Losing Orders to Silent Website Errors & Spam Filters
Enterprise-grade monitoring for digital agencies and online stores — uptime, SSL, email authentication and DNS hijack detection, translated into plain-English verdicts with exact copy-paste fixes.
AI assistants like ChatGPT answer your customers using your website right now. We make sure they read it right.
Read-only · 14 public checks · no login · results in ~10s
The 14 checks behind every score
Every check is a read-only public probe — the same data an attacker sees. Findings arrive as WHAT / WHY IT COSTS MONEY / WHEN TO FIX / the exact FIX.
Real outages. Real exploits. Verified sources.
Incidents tied directly to the checks Sentinel runs on your domain — with public sources you can verify yourself.
Every issue ships with its exact remedy
90% of findings live in DNS records and hosting settings. You paste our records into your own panel — we never need your passwords, and the next rescan auto-verifies the fix landed.
How Sentinel compares to the infrastructure giants
Honest comparison — including where they win. Full detail: comparison table · why we're different
| Capability | Pingdom | Better Stack | UptimeRobot | dmarcian | MXToolbox | Site24x7 | Sentinel |
|---|---|---|---|---|---|---|---|
| 100+ global probe locations | ✓ | ✓ | ✓ | — | ✓ | ✓ | Indian probes — the market we serve |
Prices approximate published rates (Sep 2026) — verify on their sites. No affiliation.
Every plan says exactly who fixes what
No fine print. Prices are final — no GST added (we are not GST-registered). WE FIX = our engine applies it for you. YOU FIX = we generate exact copy-paste records + click-paths. GUIDED = screen-share, we tell you where to click.
→ Emergency Fix ₹1,999 — immediate attention
→ Auto-Fix ₹1,999 (6 checks applied by us) or Full-Service ₹3,999 (+ guided call)
→ Starter Guard ₹2,499/mo (3) · Agency ₹5,999/mo (20, whitelabel)
- ✓ Full 14-check deep scan
- ✓ Prioritized PDF — all 14 checks called out
- ✓ Fix Wizard click-paths for your host
- ✓ YOU FIX: we generate the records, you paste
- ✓ Everything in Diagnose
- ✓ WE FIX 6 checks for you: SPF · DMARC · CAA · HSTS · HTTPS-redirect · TLS
- ✓ Via your Cloudflare token (revocable — never a password)
- ✓ Before→After proof PDF
- ✓ Remaining items: self-fix guide + guided call credit (incl. DNSSEC toggle — 2 min guided)
- ✓ Everything in Auto-Fix
- ✓ 30-min guided session for panel-level items (SSL renew, DKIM, blacklist, speed)
- ✓ We say exactly where to click — zero tech skill
- ✓ Final verification + proof PDF
- ✓ Honest limit: server files (security.txt) need your hosting access
- ✓ 24/7 uptime + SSL + email-reputation watch (15-min crons)
- ✓ Weekly branded PDF every Friday
- ✓ Alerts before your customers notice
- ✓ Fix-verification included
- ✓ Everything in Starter × 20 domains
- ✓ Your logo + name on all PDFs (whitelabel)
- ✓ Client-ready reports — send as-is
- ✓ Priority guided sessions
Frequently asked questions
More: full FAQ page